C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Dyno Pull This Morning

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Old May 20, 2006 | 12:40 PM
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Default Dyno Pull This Morning

Got my dyno results this morning. First I've ever had it on. The results are slightly lower than I expected but overall am satisfied. I have an 84 CFI, and I think that with the results I got they match up good with the mods I have. I think my next best move will be gears then a cam.
Mods: 160 degree thermostat 180 degree fan switch, RAM AIR,K&N,Headers,X-ram,1.6 RR, Stock CFI

It did run rich midrange, but leaned out again as it went faster. The car ran at 185 degree's the entire time, and a lot of moisture in the air today
Any of your thoughts would be appreciated.




65 mph - 123 mph
Heres a 15 second video of the dyno pull. It was pulled in third gear
http://www.e-watersystems.com/dynovid.3g2
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Old May 20, 2006 | 12:54 PM
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Well, looks your stock CFI was very underrated. That pass was equivalent to 240 chp and 300 ft-lbs of torque. Right along with a stock TPI
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Old May 20, 2006 | 07:33 PM
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Default x-ram

W/the X-ram and 1.6 rr's did you notice much loss of low end in daily driving? My X-fire is still stock and I have obtained a manifold to port. Everything I've found on the X-ram shows peak improvement with a corresponding loss on the bottom. Great for the track but not the street. Also-your car stick or auto? Thanks.

Eric
84 Z51 Auto
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Old May 20, 2006 | 09:27 PM
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Originally Posted by xrcrx
W/the X-ram and 1.6 rr's did you notice much loss of low end in daily driving? My X-fire is still stock and I have obtained a manifold to port. Everything I've found on the X-ram shows peak improvement with a corresponding loss on the bottom. Great for the track but not the street. Also-your car stick or auto? Thanks.

Eric
84 Z51 Auto
You'll read all over that you loose the low end. But I will be honest I feel my low end has improved considerably since my upgrades. I don't have any actual 1/8 or 1/4 miles times but did run 60 ft at 2.2 then 1.76. Whether you port or use the x-ram I would definetly use th 1.6 R.R's. I did forget to write in for my mods that I also put in a B&M shift kit, 2000 TQ. I kept the orginal size TB's thinking that maybe this will help with my low end. I'm not sure if I'm right but am very happy with the low end.
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Old May 21, 2006 | 12:12 AM
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From: Webster Texas
Default Thanks!

Cool! Thanks a lot for the input. Since I
've already got the extra intake I'll probably try it first, then add the 1.6's.

Eric
84 Z51 Auto
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Old May 21, 2006 | 12:13 AM
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What kind of dyno is that? I don't recognize it.
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Old May 21, 2006 | 12:23 AM
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Heres a link I found, Dyno Dynamics
http://www.dyno.com.au/
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